Family members and friends say Castillo wasn't a good swimmer, but he jumped off a pontoon boat Sunday afternoon for a swim and didn't resurface.

Sheriff's divers searched for several hours before suspending the search until Monday.

Castillo had an 82-104 record in 13 major-league seasons. He pitched for the Chicago Cubs, Colorado, Detroit, Toronto, Boston and Florida from 1991 to 2005 before retiring and lived in the Phoenix suburb of Scottsdale.